Have you ever tried reading books to each other? Basically, books are almost synonymous to TVs. Difference is, you run your imagination to visualize the scenes and characters in the book. If you are thinking of something that is as passive as when you are binge-watching, then consider getting an audiobook.
If you and your partner love reading, then try reading the same book and share your thoughts to each other. You may also read separately on the lounge and couch around and talk about the stuff afterward.
Say that you’re not into reading books, then why not to do some small gestures instead towards your partner like giving hand massages. It is not committal as doing a full-body massage and it does not take a lot of effort. Still, it lets your partner that he/she feels loved. Plus, it creates a different level of intimacy in the atmosphere.